{"id":"CVE-2023-52859","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-52859","generatedAt":"2026-10-28T02:15:05.322Z","title":"In the Linux kernel, the following vulnerability has been resolved: perf: hisi: Fix use-after-free when register pmu fails When we fail to register the uncore pmu, the pmu context may not been allocated.","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nperf: hisi: Fix use-after-free when register pmu fails\n\nWhen we fail to register the uncore pmu, the pmu context may not been\nallocated. The error handing will call cpuhp_state_remove_instance()\nto call uncore pmu offline callback, which migrate the pmu context.\nSince that's liable to lead to some kind of use-after-free.\n\nUse cpuhp_state_remove_instance_nocalls() instead of\ncpuhp_state_remove_instance() so that the notifiers don't execute after\nthe PMU device has been failed to register.","published":"2024-05-21T16:15:23.000Z","lastModified":"2026-06-17T06:43:45.000Z","status":"Analyzed","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-416"],"affected":["linux/linux kernel"],"epss":{"score":0.00241,"percentile":0.15155,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.24%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/0e1e88bba286621b886218363de07b319d6208b2","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3405f364f82d4f5407a8b4c519dc15d24b847fda","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/75bab28ffd05ec8879c197890b1bd1dfec8d3f63","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b660420f449d094b1fabfa504889810b3a63cdd5","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b805cafc604bfdb671fae7347a57f51154afa735","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/0e1e88bba286621b886218363de07b319d6208b2","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/3405f364f82d4f5407a8b4c519dc15d24b847fda","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/75bab28ffd05ec8879c197890b1bd1dfec8d3f63","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/b660420f449d094b1fabfa504889810b3a63cdd5","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/b805cafc604bfdb671fae7347a57f51154afa735","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-52859","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}